Is there any harm in speaking English or some of its words without necessity, and does one sin by doing so?

The questioner : May Allah reward the honorableThe Shaykh : We find that some people may converse with other young people and others in English or using some of its vocabulary. Does this make a difference for someone in a work environment? For example, we ourselves often converse with our colleagues in English at the hospital, even when the matter does not require speaking, but we have become accustomed to it due to our interaction with them. Is there any harm in this? And if a person speaks a word other than in Arabic, does he sin by doing so?

The Shaykh : Speaking in a language other than Arabic is sometimes permissible. The Prophet (peace and blessings be upon him) said to a young girl, a small slave girl who had come from Abyssinia. He saw her wearing a beautiful garment and said: , meaning this is good. He spoke to her in the Abyssinian language because she had come from near Abyssinia. Addressing someone who does not know Arabic in the language they understand is sometimes permissible; there is no problem with it. However, when these people come to us and do not know the Arabic language, we should not become non-Arabs before they become Arabs. For example, you may find that some people, when addressing a non-Arab, say "ma fi ma'lum" instead of "ma a'lam" (I do not know). Why? Why do they say "ma fi ma'lum"? Because that person understands it. I tell him, "Say 'I do not know' so that he understands, and say 'I do not know' instead of 'ma fi ma'lum,' yes? 'I do not know.' But unfortunately, we now fear for ourselves that we will become non-Arabs, yes.