Hajj (Pilgrimage)
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ قَيْسِ بْنِ مُسْلِمٍ، عَنْ طَارِقِ بْنِ شِهَابٍ، عَنْ أَبِي مُوسَى ـ رضى الله عنه ـ قَالَ قَدِمْتُ عَلَى النَّبِيِّ صلى الله عليه وسلم. فَأَمَرَهُ بِالْحِلِّ.Narrated Abu Musa: I came to the Prophet (from Yemen and was assuming Ihram for Hajj) and he ordered me to finish the Ihram (after performing the `Umra)
From Sahih al-Bukhari, whose reports the scholars accept as authentic.