After the message was translated and posted by Muslim activist Iyad El-Baghdadi (not related), twitter users asked for a raincheck.
Some said they wanted to see Star Wars first, while others were too busy playing Fallout 4.
@iyad_elbaghdadi Sorry but I'm watching Star Wars, maybe tomorrow...
— Aim Amraam (@Aim_Amraam) December 27, 2015
@iyad_elbaghdadi I am a little busy with this Legendary Super Mutant Overlord that keeps nagging me in Fallout 4. No can do.
— Hassaan Munir (@Go_Nawaz_Go) December 27, 2015
@iyad_elbaghdadi Oh, dude, can I join? I'm actually an infidel, but I've nearly finished Fallout 4 so I'm going to have loads of time free
— Joel (@Sliceofdog) December 28, 2015
One user wrote "I wanna wait until April and find out what happened to Jon Snow."
@iyad_elbaghdadi I wanna wait until April and find out what happened to Jon Snow
— Hind Al-Sulaiti (@hsulaiti) December 27, 2015
Some users sarcastically took up the call to arms.
@iyad_elbaghdadi My dad said I have to be home by 8pm. Will we be done by then?
— Safiyya-Maryam Ahmed (@guidanceofgod) December 27, 2015
@iyad_elbaghdadi Sorry am in a bit of a hurry, must 'daesh'!
— Glen Hattersley (@rocknroll66) December 27, 2015
@iyad_elbaghdadi sorry. Saw the tweet late. Next week, maybe?
— Umar Aftab Butt (@documaraftab) December 26, 2015

