﴿ وَإِذْ قَالَ رَبُّكَ لِلْمَلَٰٓئِكَةِ إِنِّى خَٰلِقٌۢ بَشَرًۭا مِّن صَلْصَٰلٍۢ مِّنْ حَمَإٍۢ مَّسْنُونٍۢ ﴾

“And lo! Thy Sustainer said unto the angels: "Behold, I am about to create mortal man out of sounding clay, out of dark slime transmuted;”

Please check ayah 15:33 for complete tafsir.