Sahih Muslim 1242
Sahih Muslim · Book 15: The Book of Pilgrimage · It is permissible to perform 'Umrah during the months of Hajj
Abu Jam at al-Dubu'i reported:
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى ، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ ، حَدَّثَنَا شُعْبَةُ ، قَالَ سَمِعْتُ أَبَا جَمْرَةَ الضُّبَعِيَّ ، قَالَ تَمَتَّعْتُ فَنَهَانِي نَاسٌ عَنْ ذَلِكَ، فَأَتَيْتُ ابْنَ عَبَّاسٍ فَسَأَلْتُهُ عَنْ ذَلِكَ، فَأَمَرَنِي بِهَا . - قَالَ - ثُمَّ انْطَلَقْتُ إِلَى الْبَيْتِ فَنِمْتُ فَأَتَانِي آتٍ فِي مَنَامِي فَقَالَ عُمْرَةٌ مُتَقَبَّلَةٌ وَحَجٌّ مَبْرُورٌ - قَالَ - فَأَتَيْتُ ابْنَ عَبَّاسٍ فَأَخْبَرْتُهُ بِالَّذِي رَأَيْتُ فَقَالَ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ سُنَّةُ أَبِي الْقَاسِمِ صلى الله عليه وسلم .
I performed Tamattu' but the people dis- couraged me to do so. I came to Ibn 'Abbas and asked him about it. He ordered me to do so. I came to the House (Ka'ba) and slept. I saw a visitant in the dream who said: 'Umra is acceptable and so is the Hajj performed for God's sake. I came to Ibn Abbas and informed him about that Which I saw in the dream whereupon he said: Allah is the Greatest, Allah is the Greatest This is the Sunnah of Abu'l-Qasim (the Holy Pro- phet) (ﷺ).