From his father, from his grandfather who said: "I saw the Messenger of Allah (ﷺ) drinking while standing and sitting."

This Hadith is Hasan Sahih.
Jami` at-Tirmidhi Book 26, Hadith 23
← Previous Hadith "The Prophet (ﷺ) drank from Zamzam while he was standing."

He said: There are narrations on this topic from 'Ali, Sa'd, 'Abdullah bin 'Amr and 'Aishah.

This Hadith is Hasan Sahih.

Jami` at-Tirmidhi Book 26, Hadith 22 Next Hadith → That the Prophet (ﷺ) would breathe three times in the vessel and say: "It is more wholesome and thirst quenching."

This Hadith is Hasan Gharib. Hisham Ad-Dastawa'i reported it from Abu 'Isam, from Anas.

Jami` at-Tirmidhi Book 26, Hadith 24