Praise be to Allah, we seek His help and His forgiveness. We seek refuge with Allah from the evil of our souls and our bad deeds. Whomsoever Allah guides will never be led astray, and whomsoever Allah leaves astray, no one can guide. I bear witness that there is no god but Allah, and I bear witness that Muhammad is His slave and Messenger.
1. Praying for someone who does good to you
Praying for the one who treats you kindly by saying Jazak Allahu khayran
It was narrated that Usamah ibn Zayd (may Allah be pleased with him) said: The Messenger of Allah (peace be upon him) said: “Whoever has a favor done for him and says to the one who did it, ‘Jazak Allaahu khayran’ has done enough to thank him.
2. Shaking hands with the opposite gender
It is not permissible for a man to shake the hands of a non-mahram woman.
Narrated Maqal ibn Yassaar (may Allah be pleased with him) who said: The Messenger of Allah (peace be upon him) said: “If one of you were to be struck in the head with an iron needle, it would be better for him than if he were to touch a woman he is not allowed to.”
3. Drinking
It is permissible to drink; however, it is better to drink while sitting.
Narrated Abu Hurayrah (may Allah be pleased with him): Allah’s Messenger (peace be upon him) said: “None of you should drink while standing; and if anyone forgets, he must vomit.”
Narrated Ibn ‘Abbas (may Allah be pleased with him): “The Prophet (peace be upon him) drank Zam-Zam (water) while standing.”[6]
Narrated An-Nazzal (may Allah be pleased with him): Ali came to the gate of the courtyard (of the Mosque) and drank (water) while he was standing and said, “Some people dislike to drink while standing, but I saw the Prophet (peace be upon him) doing (drinking water) as you have seen me doing now.”
Imam Nawawee (may Allah have mercy on him) said: “There is no contradiction in these ahaadeeth, praise be to Allah, and none of them are daeef (weak). Rather, they are all saheeh. The correct view is that the forbidding mentioned in them is to be understood as meaning that it is disliked. The fact that the Prophet (peace and blessings of Allah be upon him) drank whilst standing indicates that it is permissible to do so. This is all that needs to be said on the matter.”

