The testimony of faith
أَشْهَدُ أَنْ لَا إِلَٰهَ إِلَّا اللَّهُ، وَأَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللَّهِ
Ash-hadu an lā ilāha illallāh, wa ash-hadu anna Muḥammadan Rasūlullāh
I bear witness that there is no god but Allah, and I bear witness that Muḥammad is the Messenger of Allah.
Said with belief in the heart, this is enough. No witness is required for its validity, no ceremony, no certificate, and no Arabic name. Islam accepted erases everything that came before it.
Muslim · ṣaḥīḥ — “Islam demolishes what preceded it.”
Then, on the first day