Without specifying a religion, answering this question is not possible.
Hindu is not a language, it is a Religion. This is like asking where do people speak jew or Christian? Followers of Hinduism speak many different languages.
Religion isn't a language - it's a faith.
Christianity is a religion, not a language.
A Muslim is a believer in the religion of Islam, so you are asking about a religion rather than a language. Muslims all over the world speak many different languages, so you would have to pick one and ask how to say beautiful in that language.
Answerhindus---------Followers of Hinduism are called Hindus. Hindi is a language spoken in India by many people across religions.
There is no such thing as a "Muslim dialect." There is no language called Muslim. Islam is a religion, and its followers speak many different languages. These people say "Good morning" in whatever language they speak, and speak whatever language they wish to.
Sikhism is a religion, not a language. Sikhs say goodbye in whatever language they speak.
The Catholic religion and the French language was second to Vietnamese religion/language during the war. When we met a (South) Viet National in the field, if he didn't speak English, he could sometimes speak French.
Egyptians speak Arabic and their main religion is Islam
Members of the Methodist religion live in many different countries and they speak the language of their countries.
It is claimed that Christianity is the religion with more followers and Islam is the second.
Muslim isn't a language. A muslim is someone following the religion Islam. Doesn't matter which language they speak.