No, this is not permissible

Some people type “iA” meaning in sha Allaah. I think they’re shortening the English transliteration of the name of Allah to “A”. Is this permissible?

Manners | February 11, 2014 6:49 pm
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When someone says jazakAllah khayr, is it sunnah to reply baarak Allaah feek for male and baarakAllaah feeki for female or is it sunnah to reply wa iyaak for male and wa iyaaki for female? or sunnah in both cases?

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Sheikh as we know before eating and drinking we should say bismillah but when we going to drinking water while eating should we say bismillah again before drinking or there is no need to say it again as we say bismillah before eating?