Friday — throughout the day
no fixed no.
اللَّهُمَّ صَلِّ وَسَلِّمْ عَلَىٰ نَبِيِّنَا مُحَمَّدٍ
Allāhumma ṣalli wa sallim ‘alā Nabiyyinā Muḥammad
O Allah, send blessings and peace upon our Prophet Muhammad.
Abū Dāwūd & an-Nasā’ī · ḥasan/ṣaḥīḥ — “increase your ṣalawāt upon me on Friday.”