Uttering the adhan in the ears of a newborn baby
I saw the Messenger of Allah ﷺ uttering the adhan in the ear of al-Hasan b. Ali when Fatimah gave birth to him.
رَأَيْتُ رَسُولَ اللَّهِ ﷺ أَذَّنَ فِي أُذُنِ الْحَسَنِ بْنِ عَلِيٍّ حِينَ وَلَدَتْهُ فَاطِمَةُ بِالصَّلاَةِ