كتاب فضائل الصحابة رضى الله تعالى عنهم
44
The Book of the Merits of the Companions
(17)
Chapter: The Virtues Of Zainab, The Mother Of The Believers (RA)
(17)
باب مِنْ فَضَائِلِ زَيْنَبَ أُمِّ الْمُؤْمِنِينَ رضى الله عنها ‏‏

'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.
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 ‏.‏
Reference : Sahih Muslim 2452
In-book reference : Book 44, Hadith 146
USC-MSA web (English) reference : Book 31, Hadith 6007
  (deprecated numbering scheme)