The ruling on placing heel against heel and shoulder against shoulder in congregational prayer

Question:
Honorable Shaykh, may Allah grant you success. The questioner says: In my mosque in my town, all the worshippers place their heels against each other's heels. Should I do the same as them so that I do not differ from them, and for the sake of unity in our mosque?

Answer:
Yes, it is required to place the heel against the heel and the shoulder against the shoulder. This is required in your country and in others. What we say is not permissible is spreading the legs, spreading your legs such that you bother the person next to you on your right and on your left, and you open up a space under you. This is what we say is not permissible. As for closeness, the closeness of the worshippers to one another such that no space remains between them, this is the sunnah (recommended practice). Yes, but without causing annoyance. Note, without causing annoyance. Do not make it difficult for the person next to you so that he cannot bow and prostrate in the required manner. Yes.