Riyad as-SalihinChapter 2Hadith 57
Full Sharh — Riyad as-Salihin 57
وعن جابر رضى الله عنه أن النبي صلى الله عليه وسلم سأل أهله الأدم فقالوا: ما عندنا إلا خل، فدعا به، فجعل يأكل ويقول: "نعم الأدم الخل، نعم الأدم الخل" .((رواه مسلم))
English Translation
Jabir (May Allah be pleased with him) reported:: The Prophet (ﷺ) asked for sauce and was told that there was nothing except vinegar. He asked for it and began to eat from it saying, "How excellent is vinegar when eaten as sauce! How excellent is vinegar when eaten as Udm!".
Source
Riyad as-Salihin(رياض الصالحين)
The Book About the Etiquette of Eating
Hadith Number
57