It is difficult for him to pray because his work is hard
Question

                Do you call one who prays Salaah 1 or 2 or 3 times a day a kaafir ? It is not easy for normal humans to pray 5 times a day as even Prophet Musa during Mi'raj said it would be difficult for our Prophet's ummah to fulfill this. But he still said we are from his ummah. And we have belief in the articles of faith. But we do not get paid to pray like Imaams or paid to be scholars and do Islamic research. 
We have families and children who we look after and work 12  hours a day toiling in physical and mental activities to earn bread and so it is hard to fulfill all salaahs out of tiredness. Do you still consider us to be kaafirs even though we pray some of the salaah and pay zakaah and fast in Ramadan and believe in the articles of faith ? This is very important for me to know.
Praise be to Allah.Allaah
      has enjoined upon His slaves five prayers every day, day and night. He has
      commanded them to observe these prayers regularly and establish them, and
      He praises those who do so. Allaah says (interpretation of the meaning):
      
      
“And
      perform As-Salaat (Iqaamat-as-Salaat), and give Zakaat, and bow down (or
      submit yourselves with obedience to Allaah) along with
      Ar‑Raaki‘oon (those who bow or submit themselves to Allaah)”
      [al-Baqarah 2:43]
      
      
 “Guard
      strictly (five obligatory) As‑Salawaat (the prayers) especially the
      middle Salaat (i.e. the best prayer ‑ ‘Asr). And stand before
      Allaah with obedience [and do not speak to others during the Salaat
      (prayers)]” [al-Baqarah 2:238]
      
      
 “Successful
      indeed are the believers.
      
      
Those
      who offer their Salaat (prayers) with all solemnity and full
      submissiveness” [al-Mu’minoon 23:1-2]
      
      
“And
      those who strictly guard their (five compulsory congregational) Salawaat
      (prayers) (at their fixed stated hours).” [al-Mu’minoon 23:9]
 So
      you have to pay attention to establishing regular prayer and keeping it
      up, and focusing on it, and taking the specific means of achieving that,
      so that you may be one of the successful. Do not worry yourself by
      thinking about the ruling on one who misses one or two prayers and whether
      he is a kaafir or not.
      
      
 Whoever
      deliberately misses a prayer exposes himself to the wrath of Allaah, and
      the wise believer does not do something which he knows could result in
      punishment, even if it is not kufr as such. The five daily prayers, and
      all other acts of worship, and avoiding what is forbidden – none of this
      can be achieved except with patience. These are things which people find
      difficult by nature, because they come between a person and some of his
      desires.The Prophet 
 (peace and blessings of Allaah be upon him) said:
      “Paradise is surrounded by things which are disliked.” The issue of
      prayer in Islam is very important. Hence the responsible adult is not let
      off prayer for as long as he is alive and he is in his right mind. But
      Allaah has made things easier for His slaves with regard to the duty of
      praying. He allows us to join prayers and shorten them whilst travelling,
      and He allows us tojoin
      prayers when we are not travelling if not doing so will cause greater
      hardship. He allows the sick person to pray according to what he can do,
      standing, sitting or lying on his side. Hence we know that being busy
      earning a living is not an excuse for not praying. But if there is some
      unusual hardship involved, it is permissible to pray Zuhr and ‘Asr
      together at the time of either of them, and to pray Maghrib and ‘Isha’
      together at the time of either of them.
      
      
 Allaah
      commanded us to stop trading in order to pray Jumu’ah (Friday prayers),
      and He praised those who do not let trades or sales divert them from the
      remembrance of Allaah. So strive to do the prayers on time and in
      congregation. The Prophet 
 (peace and blessings of Allaah be upon him)
      said: “Praying in congregation is twenty-seven times better than praying
      alone.”
      
      
 Note
      that praying regularly is one of the greatest means of attaining the mercy
      of Allaah and His pleasure and His Paradise, which is the main goal.It is
      also a means of making earning one’s provision easier, as Allaah says
      (interpretation of the meaning):
“And
      enjoin al-salaah (the prayer) onyour
      family, and bepatient in offering them[i.e., the prayers].We ask not of
      you a provision (i.e., to give Us something: money, etc.); We provide for
      you. And the good end (i.e., Paradise) is for the muttaqoon (pious).” 
      
      
[Ta-Ha
      20:132]
      
      
 The
      Muslim does not ask people for any reward for his worhip of his Lord. He
      prays for Allaah, he fasts for Allaah, he does Hajj for Allaah, and he
      hopes for the reward of Allaah. When you say we do not get get paid to
      pray like the imaams, this is a mistake in your way ofthinking. It is not permissible for the imaam to take a salary for
      doing the prayers; imaams and muezzins are being paid for doing a job
      which requires them to to be present at the mosque every time (so that
      they can devote their time to doing their duties of leading prayers,
      giving khutbahs, issuing fatwas and judging between people). But it is
      better for a Muslim to fulfil the duties of an imaam or muezzin
      voluntarily, hoping for the reward of Allaah. 
      
      
 When
      you say we have families, children, etc… this is not an excuse for
      missing some of the prayers. You have to devote some of your time to doing
      the prayers. It is only a small amount of time, for each prayer, doing it
      and preparing for it, does not take more than a quarter of an hour.  
      
      
If
      you do give up some of the prayers because you are too busy seeking
      provision, we will not confirm that you are a kaafir, but we will say that
      you are a sinner who is committing a major sin. We have already stated
      above that in cases of unusual difficulty you can put Zuhr and ‘Asr
      together at the time of either ofthem,.
      We also remind you that it is essential to pray fajr at the right time,
      which is from the start of dawn until the sun rises.
      
      
 May
      Allaah help us and you to obey Him.