Sunan Ibn Majah, Volume 2, Book 6, Hadith 1449 (DarusSalam) ⓘ
It was narrated from ‘Abdur-Rahman bin Ka’b bin Malik, about Ka’b: “When Ka’b was dying, Umm Bishr bint Bara’ bin Ma’rur came to him and said: ‘O Abu ‘Abdur-Rahman! If you meet so-and-so, convey Salam to him from me.’ He said: ‘May Allah forgive you, O Umm Bishr! We are too busy to think of that.’ She said: ‘O Abu ‘Abdur-Rahman! Did you not hear the Messenger of Allah say: “The souls of the believers are in green birds, eating from the trees of Paradise”?’ He said: ‘Yes.’ She said: ‘That is what I mean.’”
حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، ح وَحَدَّثَنَا مُحَمَّدُ بْنُ إِسْمَاعِيلَ، حَدَّثَنَا الْمُحَارِبِيُّ، جَمِيعًا عَنْ مُحَمَّدِ بْنِ إِسْحَاقَ، عَنِ الْحَارِثِ بْنِ فُضَيْلٍ، عَنِ الزُّهْرِيِّ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ كَعْبِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، قَالَ لَمَّا حَضَرَتْ كَعْبًا الْوَفَاةُ أَتَتْهُ أُمُّ بِشْرٍ بِنْتُ الْبَرَاءِ بْنِ مَعْرُورٍ فَقَالَتْ يَا أَبَا عَبْدِ الرَّحْمَنِ إِنْ لَقِيتَ فُلاَنًا فَاقْرَأْ عَلَيْهِ مِنِّي السَّلاَمَ . قَالَ غَفَرَ اللَّهُ لَكِ يَا أُمَّ بِشْرٍ نَحْنُ أَشْغَلُ مِنْ ذَلِكِ . قَالَتْ يَا أَبَا عَبْدِ الرَّحْمَنِ أَمَا سَمِعْتَ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ " إِنَّ أَرْوَاحَ الْمُؤْمِنِينَ فِي طَيْرٍ خُضْرٍ تَعْلُقُ فِي شَجَرِ الْجَنَّةِ " . قَالَ بَلَى . قَالَتْ فَهُوَ ذَاكَ .
also referenced under: Hadith 1449 (Reference) & Book 6, Hadith 1516 (In-Book)