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

English translation · Sunan Ibn Majah