´It was narrated that Anas bin Malik said:` "Two men sneezed in he presence of the Prophet(ﷺ) and he replied (said: YarhamukAllah; may Allah have mercy on you') to one and not to the other. It was said: 'O Messenger of Allah(ﷺ), two men sneezed in your presence and you replied to one and not to the other?' He said: "'This one praised Allah(said Al-Hamdulillah fter sneezing) but that one did not.'"
Hadith Referenceسنن ابن ماجه / كتاب الأدب / 3713
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه
´It was narrated from Ilyas bin Salamah bin Akwa' that his father said:` "The Messenger of Allah(ﷺ) said: 'The one who sneezes may be responded to three times; if he sneezes more than that, he has a cold.'"
Hadith Referenceسنن ابن ماجه / كتاب الأدب / 3714
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:ضعيف, ضعيف, عكرمة بن عمار عنعن وھو مدلس, وحديث مسلم (2993) يغني عنه, انوار الصحيفه، صفحه نمبر 510
´It was narrated from Ali that the Messenger of Allah(ﷺ) said:` "If anyone of you sneezes, let him say: Alhamdulillah (praise be to Allah). Those around him should respond by saying: Yarhamkullah (may Allah have mercy on you). And he should respond by saying: "Yahdikum Allah wa yuslaha balakum (may Allah Guide you and set right your state)."