Sunan an-Nasa'i, Volume 3, Book 24, Hadith 2821 (DarusSalam) ⓘ
It was narrated from As-Sab bin Jaththamah that: he gave the Messenger of Allah an onager when he was in Al-Abwa or in Waddan, but the Messenger of Allah gave it back to him. "And when the Messenger of Allah saw the expression on my face he said: "We only gave it back to you because we are in Ihram.'"
أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ عُتْبَةَ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، عَنِ الصَّعْبِ بْنِ جَثَّامَةَ، أَنَّهُ أَهْدَى لِرَسُولِ اللَّهِ صلى الله عليه وسلم حِمَارَ وَحْشٍ وَهُوَ بِالأَبْوَاءِ أَوْ بِوَدَّانَ فَرَدَّهُ عَلَيْهِ رَسُولُ اللَّهِ صلى الله عليه وسلم فَلَمَّا رَأَى رَسُولُ اللَّهِ صلى الله عليه وسلم مَا فِي وَجْهِي قَالَ " أَمَّا إِنَّهُ لَمْ نَرُدَّهُ عَلَيْكَ إِلاَّ أَنَّا حُرُمٌ " .
also referenced under: Hadith 2819 (Reference) & Book 24, Hadith 0 (In-Book)