Tafsir of Al-Mu'minoon 23:108

وَلَا تُكَلِّمُونِ (Do not speak to Me - 23:108). According to Hasan al-Basri (رح) these will be the last words of the people who are cast in hell and in reply Allah will say, |"Do not speak to Me.|" After this they will not be able to speak like human beings, but will make animal sounds to each other. Baihaqi and others have quoted Muhammad Ibn Ka` b as saying that the Qur'an mentions five requests made by the people condemned to hell. Out of the five, replies were furnished to four, but in reply to the fifth Allah commanded them not to speak to Him. Thus these are the last words to be uttered by them after which they will not be able to speak. (Mazhari)