Is it permissible to ask Allaah for a specific amount of money?
Question

                Is it permissible to say in one’s du’aa’: O Allaah, give me this amount of money – 1000 riyals for example?.
Praise be to Allah.
    It is permissible for a person to ask his Lord for a worldly 
    need, such as money or a wife and the like, as al-Tirmidhi (3973) narrated 
    from Thaabit that Anas said: The Messenger of Allaah  (peace and 
    blessings of Allaah be upon him) said: “Let one of you ask his Lord for what 
    he needs, even asking Him for the lace of his shoe if it breaks.” Classed as 
    hasan by al-Albaani in Mishkaat al-Masaabeeh. 

    It is better for this request to be accompanied by a request 
    for benefit, blessing and help to obey Allaah, such as saying: O Allaah, 
    bless me with good or halaal wealth, and bless it for me, and make it a help 
    to me in obeying You and attaining Your pleasure. Or he may say: O Allaah, 
    make me independent of means with that which You have permitted so that I 
    have no need of that which You have forbidden. Or: Our Lord, give us good in 
    this world and good in the Hereafter. For money may be a fitnah (temptation) 
    and a trial, and may lead to doom. 

     Among the du’aa’s of the Prophet  (peace and blessings 
    of Allaah be upon him) is that which was narrated by Ibn Maajah (925) from 
    Umm Salamah, that the Prophet  (peace and blessings of Allaah be upon 
    him) used to say when he said salaam at the end of Fajr prayer: “O Allaah, 
    grant me beneficial knowledge, goodly provision and accepted deeds.” Classed 
    as saheeh by al-Albaani in Saheeh Ibn Maajah. 

    Al-Tirmidhi (3500) narrated from Abu Hurayrah that a man 
    said: O Messenger of Allaah, I heard your du’aa’ last night and what reached 
    me of it was that you said: O Allaah, forgive me my sins, make my house 
    spacious and bless me in what you provide for me. He said: “Do you think 
    that there is anything left out?” Classed as hasan by al-Albaani in 
    Saheeh al-Jaami’ no. 1265. 

    And Allaah knows best.