Narrated Abu Musa:

came upon Allah's Apostle when he was at Al-Bat-ha. He asked me, "Have you intended to perform the Hajj?" I replied in the affirmative. He asked, "For what have you assumed lhram?" I replied," I have assumed Ihram with the same intention as that of the Prophet ." The Prophet ﷺ said, "You have done well! Go and perform Tawaf round the Ka'ba and between Safa and Marwa." Then I went to one of the women of Bani Qais and she took out lice from my head. Later, I assumed the Ihram for Hajj. So, I used to give this verdict to the people till the caliphate of 'Umar. When I told him about it, he said, "If we take (follow) the Holy Book, then it orders us to complete Hajj and 'Umra (Hajj-at-Tamattu') and if we follow the tradition of Allah's Apostle then Allah's Apostle did not finish his lhram till the Hadi had reached its destination (had been slaughtered). (i.e. Hajj-al-Qiran). (See Hadith No. 630)

حَدَّثَنَا عَبْدَانُ، قَالَ أَخْبَرَنِي أَبِي، عَنْ شُعْبَةَ، عَنْ قَيْسِ بْنِ مُسْلِمٍ، عَنْ طَارِقِ بْنِ شِهَابٍ، عَنْ أَبِي مُوسَى ـ رضى الله عنه ـ قَالَ قَدِمْتُ عَلَى رَسُولِ اللَّهِ ﷺ وَهُوَ بِالْبَطْحَاءِ. فَقَالَ " أَحَجَجْتَ ". قُلْتُ نَعَمْ. قَالَ " بِمَا أَهْلَلْتَ ". قُلْتُ لَبَّيْكَ بِإِهْلاَلٍ كَإِهْلاَلِ النَّبِيِّ ﷺ. قَالَ " أَحْسَنْتَ، انْطَلِقْ فَطُفْ بِالْبَيْتِ وَبِالصَّفَا وَالْمَرْوَةِ ". ثُمَّ أَتَيْتُ امْرَأَةً مِنْ نِسَاءِ بَنِي قَيْسٍ، فَفَلَتْ رَأْسِي، ثُمَّ أَهْلَلْتُ بِالْحَجِّ، فَكُنْتُ أُفْتِي بِهِ النَّاسَ، حَتَّى خِلاَفَةِ عُمَرَ ـ رضى الله عنه ـ فَذَكَرْتُهُ لَهُ. فَقَالَ إِنْ نَأْخُذْ بِكِتَابِ اللَّهِ فَإِنَّهُ يَأْمُرُنَا بِالتَّمَامِ، وَإِنْ نَأْخُذْ بِسُنَّةِ رَسُولِ اللَّهِ ﷺ فَإِنَّ رَسُولَ اللَّهِ ﷺ لَمْ يَحِلَّ حَتَّى بَلَغَ الْهَدْىُ مَحِلَّهُ.