Asalaamualaikum Warahmatullah. Shaykh Abdur Raheem Limbada has did a response to Abu Usamah Here is the video ( bare in mind this is part 1. It is in 9 parts, Inshallahh Just need to upload 4 more parts that should take an hour and a half and u can watch the full thing. at the moment there are 4 that are in place http://www.youtube.com/watch?v=nt3zDeDdfGA The shaykh taught Mufti Adam Al Kawthari