What is disliked for the fasting person: excess in sniffing water

It is narrated from Sayyiduna Laqit bin Sabirah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Be thorough in sniffing water into the nose, unless you are fasting, in which case do not do so."

Fudayl says that al-Dahhak and his companions were in Khurasan during the month of Ramadan, and they would not rinse their mouths.

Ibn Sirin used to dislike that a fasting person should sniff water into his nose in such a way that it enters his throat.

Al-Sha'bi says: If you are fasting, do not overdo sniffing water into the nose.