Salam,
I read about a book called the "Life of Adam and Eve" - which contains the story of Adam alaihi salam being prostrated before by the Angels. It seems to be from the first century? I am wondering how I should respond to creeping doubts, as it's argued that Muhammad Salla Allahu Alaihi Was Salam heard these stories and legends and incorporated it in the Qur'an, especially with the polemical nature of the Qur'an which seems to assume a fully knowing reader at times.