Sunan Ibn Majah, Volume 4, Book 29, Hadith 3324 (DarusSalam) ⓘ

It was narrated that ‘Aishah said: “My mother was trying to fatten me up when she wanted to send me to the Messenger of Allah (when she got married), but nothing worked until I ate cucumbers with dates; then I grew plump like the best kind of plump.”

حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا يُونُسُ بْنُ بُكَيْرٍ، حَدَّثَنَا هِشَامُ بْنُ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ كَانَتْ أُمِّي تُعَالِجُنِي لِلسُّمْنَةِ تُرِيدُ أَنْ تُدْخِلَنِي عَلَى رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ فَمَا اسْتَقَامَ لَهَا ذَلِكَ حَتَّى أَكَلْتُ الْقِثَّاءَ بِالرُّطَبِ فَسَمِنْتُ كَأَحْسَنِ سُمْنَةٍ ‏.‏