Shahada to Shahadatan

The Shahada ( ٱلشَّهَادَةُ), the testimony of faith, is simply:

أشْهَدُ أنْ لا الهَ الاّ الله ašhadu ʾan lā ʾilāha ʾillā -llāh “I bear witness there is no god beside God.”

This is the Shahada of God, the angels, and the knowledgable, and is specified in the following verse of the Quran:

3:18 GOD bears witness that there is no god except He, and so do the angels and those who possess knowledge. Truthfully and equitably, He is the absolute god; there is no god but He, the Almighty, Most Wise.

شَهِدَ ٱللَّهُ أَنَّهُۥ لَآ إِلَـٰهَ إِلَّا هُوَ وَٱلْمَلَـٰٓئِكَةُ وَأُو۟لُوا۟ ٱلْعِلْمِ قَآئِمًۢا بِٱلْقِسْطِ لَآ إِلَـٰهَ إِلَّا هُوَ ٱلْعَزِيزُ ٱلْحَكِيمُ

This has been the testimony of faith for all of history and the testimony all humans were required to profess even before our arrival here on Earth.

7:172 Recall that your Lord summoned all the descendants of Adam, and had them bear witness for themselves: “Am I not your Lord?” They all said, “ Yes. We bear witness.” Thus, you cannot say on the Day of Resurrection, “We were not aware of this.”