She took the oath of allegiance to the Messenger of Allah ﷺ and said to him: Messenger of Allah, a poor man stands at my door, but I find nothing to give him. The Messenger of Allah ﷺ said to her: If you do not find anything to give him, put something in his hand, even though it should be a burnt hoof. (Using translation from Abū Dāʾūd 1667)
أَنَّ جَدَّتَهُ حَدَّثَتْهُ وَهِيَ أُمُّ بُجَيْدٍ وَكَانَتْ زَعَمَتْ أَنَّهَا مِمَّنْ بَايَعَتْ رَسُولَ اللَّهِ ﷺ أَنَّهَا قَالَتْ يَا رَسُولَ اللَّهِ وَاللَّهِ إِنَّ الْمِسْكِينَ لَيَقُومُ عَلَى بَابِي فَمَا نَجِدُ لَهُ شَيْئًا أُعْطِيهِ إِيَّاهُ فَقَالَ لَهَا رَسُولُ اللَّهِ ﷺ «فَإِنْ لَمْ تَجِدِي شَيْئًا تُعْطِيَهُ إِيَّاهُ إِلَّا ظِلْفًا مُحْرَقًا فَادْفَعِيهِ إِلَيْهِ فِي يَدِهِ» صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ