The Obligation For the Pilgrim who is performing Tamattu' to offer a sacrifice; If he has no animal to sacrifice, he must fast for three days during Hajj and seven days when he goes back to his family

Sahih Muslim · Book 15 · Hadith 1227

حَدَّثَنَا عَبْدُ الْمَلِكِ بْنُ شُعَيْبِ بْنِ اللَّيْثِ، حَدَّثَنِي أَبِي، عَنْ جَدِّي، حَدَّثَنِي عُقَيْلُ بْنُ، خَالِدٍ عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، - رضى الله عنهما - قَالَ تَمَتَّعَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي حَجَّةِ الْوَدَاعِ بِالْعُمْرَةِ إِلَى الْحَجِّ وَأَهْدَى فَسَاقَ مَعَهُ ال…

Abdullah b. 'Umar (Allah be pleased with them) reported: Allah's Messenger (ﷺ) observed Tamattu' in Hajjat-ul-Wada'. He first put on Ihram for 'Umra and then for Hajj. and then offered animal sacrifice. So he drove the s…