Sahih Muslim 6316
The Book of the Merits of the Companions
حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ أَبُو أَحْمَدَ، حَدَّثَنَا الْفَضْلُ بْنُ مُوسَى السِّيْنَانِيُّ، أَخْبَرَنَا طَلْحَةُ بْنُ يَحْيَى بْنِ طَلْحَةَ، عَنْ عَائِشَةَ بِنْتِ طَلْحَةَ، عَنْ عَائِشَةَ أُمِّ الْمُؤْمِنِينَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَسْرَعُكُنَّ لَحَاقًا بِي أَطْوَلُكُنَّ يَدًا " . قَالَتْ فَكُنَّ يَتَطَاوَلْنَ أَيَّتُهُنَّ أَطْوَلُ يَدًا . قَالَتْ فَكَانَتْ أَطْوَلَنَا يَدًا زَيْنَبُ لأَنَّهَا كَانَتْ تَعْمَلُ بِيَدِهَا وَتَصَدَّقُ .
A'isha, the Mother of the Faithful, reported that Allah's Messenger (ﷺ) said:One who has the longest hands amongst you would meet me most immediately. She farther said: They (the wives of Allah's Apostle) used to measure the hands as to whose hand was the longest and it was the hand of Zainab that was the longest amongst them, as she used to work with her hand and Spend (that income) on charity
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.