wa alaikum salaam
This is permissible.

Asslam’ alaykum. Is it permissible to delay asr salah to where there’s about an hourleft until the start of maghrib? I ask this because I have severe eczemaon my face and body and I need to leave the medicine on for some hours during the day and currently only have time to put it straight after zuhr salah.

Prayer | April 15, 2014 6:20 am
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Asselamu aleykum, I want to combine megrib and isha. This is the first time that I do it and I have a question about it. If I want to combine these prayers, have I to pray Isha straigh aftethe salam of the megrib prayer or can I do the adhkaar of the evening after praying megrib and than do Isha? Jizaak Allahu kheyran.