Condemnable customs in marriages
It is the custom in “Sanchak” that the would-be sister-in-law takes the finger of the would-be groom in her own hand and applies Henna although both of them are Unrelated strangers (non-Mahram) to each other. It is assumed that these kinds of acts on the occasions of happiness and joy are not that wrong.
Here, it should be remembered that be it marriage or other occasions of joy, there is no problem if any function, etc. is organized within the limits set by the Shariah. However, revealing one’s beauty to an Unrelated stranger (non-Mahram), letting an Unrelated woman hold one’s hand, etc. all these are prohibited by the Shariah.
It is strictly forbidden to touch or caress a non-Mahram. The Hadith have warnings about it. There is a Hadith about in Al Hidayah:
Translation: Whoever touches the hand of a non-Mahram woman, on the Day of Judgment, an ember will be placed on his hand. (Al Hidayah, Kitab Ul Karahiyya, Vol. 4, Pg. No. 459)
An ember will be placed on the hand because the sin of touching has been done through hand. A small spark is enough to turn us over and over in pain. The agony and pain when an ember from the fires of hell is placed on the hand cannot even be imagined in this world.
Applying Henna to the hand of a male is prohibited. Neither the objective for which the sister-in-law takes the hand of the would-be groom is valid nor are they permitted to hold hands.
Therefore, such customs which are against the Shariah need to be dropped and done away with.