الكافي- ط الاسلامية, volume 6, page 329

1. Al-Husayn from Muhammad has narrated from Mu‘alla’ ibn Muhammad from al-Hassan ibn Ali al-Washsha’ from ‘Abd Allah ibn Sinan who has said the following: “Abu ‘Abd Allah (a.s.), has said that once the Messenger of Allah went to the house of ‘Umm Salamah, may Allah be pleased with her, and she brought pieces of bread. He (the Messenger of Allah) asked, ‘Do you have any sauce?’ She replied, ‘No, O Messenger of Allah except vinegar.’ He (the Messenger of Allah) said, ‘Yes, vinegar is the best sauce; a house which has vinegar does not become poor.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

2. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hisham ibn Salim from Sulayman ibn Khalid who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Vinegar strengthens the power of understanding.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

3. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Ali ibn abu Hamzah who has said the following: “I once heard abu ‘Abd Allah (a.s.), saying, ‘A house in which there is vinegar does not become needy, and the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has already said it.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

4. Ali ibn Muhammad ibn Bandar has narrated from his father from Muhammad ibn Ali al-Hamadaniy who has said the following: “A man in Khurasan once was with al-Rida’ (a.s.), and the table-spread with food inside, vinegar and salt, was brought to him. He (the Imam) began with vinegar and the man said, ‘I pray to Allah to keep my soul in service for your cause, have you commanded us to begin with salt?’ He (the Imam) said, ‘This is like that’, meaning vinegar, ‘and that vinegar strengthens the mind and increases the ability to understand.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

5. Ali ibn Muhammad has narrated from Ahmad ibn abu ‘Abd Allah from Aban ibn ‘Abd al-Malik from ’Isma‘il ibn Jabir who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘We begin with vinegar which is with us as you begin with salt which is with you, and vinegar strengthens the ability to understand better.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

6. Ali ibn Ibrahim has narrated from his father from al-Nawfaliy from al-Sakuniy who has said the following: “Abu ‘Abd Allah (a.s.), has said that the best sauce to the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, was vinegar.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

7. Ali ibn Ibrahim has narrated from certain persons of our people from ‘Abd Allah ibn ‘Abd al-Rahman al-Asamm from Shu’ayb from abu Basir who have said the following: “Abu ‘Abd Allah (a.s.), has said that ’Amir al-Mu’minin has said, ‘The best sauce is vinegar, it breaks bitterness, (bile) extinguishes yellowness (gall) and brings the heart to life.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.