How to Treat Your Brother and His Wife 

Treat your elder brother with good manners. Do things according to his advice. Sometimes make a topi, handkerchief, etc. for him yourself. When he comes home, clean his room and lay out the bedding.

Treat your brother’s wife like your own real sister. Don’t be selfish, don’t become angry over everything, do your work happily, eat and drink together, don’t differentiate between hers and your things, don’t allow suspicion to arise, manage the household together, do not oppose each other, live like one person. If a mistake happens, don’t complain to your parents, and clear everything when you get a chance.

Do not pick on small, small things, otherwise, it will be difficult to live at the in-laws’ home [when you get married].

(Husn-e-Mu’aasharat)