(30) باب فَضِيلَةِ الْخَلِّ وَالتَّأَدُّمِ بِهِ
Jabir b. 'Abdullah reported that Allah's Apostle (ﷺ) asked his family for condiment. They (the members of his household) said:
We have nothing with us but vinegar. He asked for it, he began to eat it, and then said: Vinegar is a good condiment, vinegar is a good condiment.
Reference: Sahih Muslim 2052 a
In-book reference: Book 36, Hadith 226
USC-MSA web (English) reference(deprecated numbering scheme): Book 23, Hadith 5093