فأكلا منها فبدت لهما سوآتهما وطفقا يخصفان عليهما من ورق الجنة وعصى (20:121) بالانجليزي

(20:121) At last, both of them (Adam and his wife) ate of the fruit (of the forbidden tree). As a result thereof, the nakedness of each appeared before the other, and they began to cover themselves up with leaves from the Garden. *101 Adam disobeyed his Lord and went astray from the right way. *102

Tafseer Abu-al-A'la Maududi

Page 320 English Traditional

*101) No sooner did they disobey the "Command" than they were deprived of all the facilities, but naturally the immediate effect of this as felt by them was. that they were stripped of their garments. Then gradually, as they felt thirsty, hungry etc., they realized that they had been deprived of all the facilities that they enjoyed in the Garden.
*102) It is worth while to understand the nature of human weakness which helped Satan to seduce Adam and Eve. They succumbed to seduction because Satan tempted them in the garb of a true friend and well-wisher even though they knew full well that he was their enemy. For Adam had a direct knowledge of the envy and enmity of Satan, who had challenged to seduce and ruin him in his very presence. Allah had also warned them to guard against the envy of and the temptations by Satan and had informed them of the consequences of disobedience. Above all, Adam and Eve still believed in Allah and never thought of intentional disobedience. But in spite of this, when Satan tempted them in the garb of a friend, they disobeyed their Lord: they forgot the "Command" for the time being for lack of fineness of purpose. And since then this human weakness has persisted in their descendants during all ages.