Two men sneezed before the Prophet ﷺ and he said Tashmit to one of them, while he did not say Tashmit to the other. So that man said, "O Messenger of Allah ﷺ! You said Tashmit to that fellow but you did not say Tashmit to me. "The Prophet ﷺ said, "That man praised Allah, but you did not praise Allah."  

سَمِعْتُ أَنَسًا ؓ يَقُولُ عَطَسَ رَجُلاَنِ عِنْدَ النَّبِيِّ ﷺ فَشَمَّتَ أَحَدَهُمَا وَلَمْ يُشَمِّتِ الآخَرَ فَقَالَ الرَّجُلُ يَا رَسُولَ اللَّهِ شَمَّتَّ هَذَا وَلَمْ تُشَمِّتْنِي قَالَ إِنَّ هَذَا حَمِدَ اللَّهَ وَلَمْ تَحْمَدِ اللَّهَ