He did ‘Umrah during the months of Hajj then went back to his city. Is he doing tamattu’?
Question

                Please advise me about doing ‘Umrah during the months of Hajj with the intention of doing Hajj in the same year. Is it essential when we come back for Hajj that we should do tamattu’, and do we have to offer a sacrifice (hadiy) or not? Please note that we intend to do ifraad Hajj, and we live in Madeenah.
Praise be to Allah.The pilgrim who is doing tamattu’ is the one who enters ihraam for ‘Umrah during 
    the months of Hajj and ends ‘Umrah, then enters ihraam for Hajj in the same year. 
One of the conditions of tamattu’ is that the pilgrim should not leave Makkah 
    after ‘Umrah and go back to his own city. If he goes back to his city then comes back to do Hajj then he is doing ifraad, not tamattu’. He does 
    not have to offer a sacrifice because he set out on a new journey for Hajj. If this pilgrim wants to do tamattu’ then he should enter ihraam from 
    the meeqaat when he comes the second time for Hajj. 
But if he traveled from Makkah after ‘Umrah to a city other than his own, such as 
    if he traveled to Jeddah then came back in ihraam for Hajj, then he is doing tamattu’, and his trip to Jeddah does not invalidate his tamattu’, 
    because he did not go back to his family.
    Shaykh Ibn Baaz was asked about a man who did ‘Umrah in Shawwaal, then went back to his family, then came back to Makkah with the intention of 
    offering Hajj only – is he doing tamattu’ and does he have to offer a sacrifice? 
He replied: 
If a person does ‘Umrah in Shawwaal then goes back to his family, then comes to do 
    Hajj on its own, then the majority of scholars are of the view that he is not doing tamattu’ and he does not have to offer a sacrifice, because he 
    went back to his family then he came back to do Hajj on its own. This is the view that was narrated from ‘Umar and his son (may Allaah be pleased 
    with them both), and it is the view of the majority. It was narrated from Ibn ‘Abbaas that the pilgrim in this case is doing tamattu’, and that he 
    does have to offer a sacrifice, because he combined ‘Umrah and Hajj in the months of Hajj in the same year. But the majority say that if he goes 
    back to his family – and some of them say that if he travels a short distance – then comes back for Hajj on its own, then he is not doing 
    tamattu’. It seems, and Allaah knows best, that the most correct view is that which was narrated from ‘Umar and his son (may Allaah be pleased 
    with them both), which is that if he goes back to his family, then he is not doing tamattu’, and he does not have to offer a sacrifice. But for 
    the one who came to do Hajj and did ‘Umrah and then stayed in Jeddah or al-Ta’if, and he is not one of their people, then he entered ihraam, this 
    person is doing tamattu’, and the fact that he went to al-Ta’if or Jeddah or Madeenah does not mean that he is no longer doing tamattu’, because 
    he came to perform them (‘Umrah and Hajj) together, and he only went to Jeddah or al-Ta’if for a reason. The same applies to one who goes to visit 
    Madeenah – this does not mean that he is no longer doing tamattu’ according to the most obvious and most correct view. So he has to offer the 
    sacrifice of tamattu’ and do saa’i for Hajj just as he did saa’i for ‘Umrah.  
Majmoo’ Fataawa al-Shaykh Ibn Baaz, 17/96 
In Fataawa al-Shaykh Ibn Baaz (17/98) it also says: 
If he comes back in ihraam for ‘Umrah – i.e., on his second trip – and exits ihraam then stays 
    until he does Hajj, this is tamattu’. His first ‘Umrah does not mean that he was doing tamattu’, according to the majority, but the second ‘Umrah 
    which he did and then stayed in Makkah until he does Hajj means that he is now doing tamattu’. 
Shaykh Ibn ‘Uthaymeen said: 
If the pilgrim who is doing tamattu’ goes back to his city then sets out again from his city 
    to do Hajj, then he is doing ifraad, because of the interval between ‘Umrah and Hajj that occurred when he went back to his family. His setting 
    out means that he is embarking on a new journey to do Hajj, so in this case his Hajj is ifraad. So he does not have to offer a sacrifice in this 
    case, but if he does this as a trick to try to avoid having to offer a sacrifice, then he is not relieved of that obligation, because trying to 
    use tricks to avoid doing an obligatory duty does not mean that one is relieved thereof, just as trying to use tricks to do something haraam does 
    not make it permissible.  
Fataawa Arkaan al-Islam, p. 524.