Ash-Shama'il Al-Muhammadiyah, Book 26, Hadith 170 (In-Book)

'Aayeshah Radiyallahu 'Anha says: "Rasulullah Sallallahu 'Alayhi Wasallam liked the dhiraa portion of meat not because of its tastiness, but because meat was only available occasionally, and this portion the meat cooked quickly. Rasulullah Sallallahu 'Alayhi Wasallam also liked it as it saved time and he could return quickly to his commitments".

حَدَّثَنَا الْحَسَنُ بْنُ مُحَمَّدٍ الزَّعْفَرَانِيُّ، قَالَ‏:‏ حَدَّثَنَا يَحْيَى بْنُ عَبَّادٍ، عَنْ فُلَيْحِ بْنِ سُلَيْمَانَ، قَالَ‏:‏ حَدَّثَنِي رَجُلٌ، مِنْ بَنِي عَبَّادٍ يُقَالَ لَهُ‏:‏ عَبْدُ الْوَهَّابِ بْنُ يَحْيَى بْنُ عَبَّادٍ، عَنْ عَبْدِ اللهِ بْنِ الزُّبَيْرِ، عَنْ عَائِشَةَ، قَالَتْ‏:‏ مَا كَانَتِ الذِّرَاعُ أَحَبَّ اللَّحْمِ إِلَى رَسُولِ اللهِ صلى الله عليه وسلم، وَلَكِنَّهُ كَانَ لا يَجِدُ اللَّحْمَ إِلا غِبًّا، وَكَانَ يَعْجَلُ إِلَيْهَا، لأَنَّهَا أَعْجَلُهَا نُضْجًا‏.‏

also referenced under: Book 25, Hadith 161 (English)