Andy Bannister answers the question "Islam and Christianity: Is it the same God?" in the second video series of Short Answers to Big Questions. If you want to read more widely on this question, then check out Seeking Allah, Finding Jesus by Nabeel Qureshi: https://rzim.christianbook.com/seeking-allah-finding-jesus/nabeel-qureshi/9780310527237/pd/527237?event=ESRCG