Jami at-Tirmidhi 786
Jami at-Tirmidhi · Book 8: The Book on Fasting · What Has Been Related About The Virtue For The Fasting Person When Others Are Eating In His Presence
(Another chain) from Umm Amarah bint Ka'b Al-Ansari:
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ ، حَدَّثَنَا شُعْبَةُ ، عَنْ حَبِيبِ بْنِ زَيْدٍ ، عَنْ مَوْلاَةٍ، لَهُمْ يُقَالُ لَهَا لَيْلَى عَنْ جَدَّتِهِ أُمِّ عُمَارَةَ بِنْتِ كَعْبٍ ، عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوَهُ وَلَمْ يَذْكُرْ فِيهِ " حَتَّى يَفْرُغُوا أَوْ يَشْبَعُوا " . قَالَ أَبُو عِيسَى وَأُمُّ عُمَارَةَ هِيَ جَدَّةُ حَبِيبِ بْنِ زَيْدٍ الأَنْصَارِيِّ .
From the Prophet, that is similar, except that he did not mention "Until they finish, or they have eating their fill."
Grade: Hasan (Darussalam)