Sunan an-Nasa'i 4190
It was narrated that Umaimah bin Ruqaiqah said:
"We gave pledge to the Messenger of Allah among a group of women, and he said to us: 'In as much as you can and are able ."'
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ مُحَمَّدِ بْنِ الْمُنْكَدِرِ، عَنْ أُمَيْمَةَ بِنْتِ رُقَيْقَةَ، قَالَتْ بَايَعْنَا رَسُولَ اللَّهِ صلى الله عليه وسلم فِي نِسْوَةٍ فَقَالَ لَنَا ‏
"‏ فِيمَا اسْتَطَعْتُنَّ وَأَطَقْتُنَّ ‏"‏ ‏.‏