Among the adhkar that can be recited after prayer are the following: 1. Astaghfirullah 3 times 2. Allahumma anta al-salam wa minka al-salam tabarakta ya dhal-jalali wa’l-ikram 3. Reciting Ayat al-Kursiy silently, 4. Reciting Qul Huwa Allahu Ahad, Qul a'udhu bi Rabbi’l-Falaq and Qul a’udhu bi Rabbi’l-Nas.

A person should not remember Allah on his tongue (by speaking) when he is in the bathroom, rather he should do so in his heart.

It is not permissible for a man to touch the hands of a woman who is not one of his Mahrams. It is not permissible to shake hands even with a barrier in between such as shaking hands from beneath a garment and the like. The same ruling applies to shaking hands with old women.