Prayer is a tawqīfi act of worship which we should take and learn from the Prophet (may Allah's peace and blessings be upon him). This includes the manner of leaving after finishing the prayer. In this Hadīth, the Tābi‘i Ismā‘īl ibn ‘Abdur-Rahmān as-Suddi says that he asked the Companion, Anas ibn Mālik (may Allah be pleased with him): How should I leave after finishing the prayer, to go back to the place I need to go - to my right or to my left? Replying to him, Anas (may Allah be pleased with him) said that he mostly saw the Messenger (may Allah's peace and blessings be upon him) turn to the right after finishing the prayer. In a Hadīth narrated by Ahmad in his "Musnad Collection," ‘Abdullāh ibn ‘Amr ibn al-‘Ās (may Allah be pleased with him) said: "I saw him leave to his right, and I saw him leave to his left," i.e., he would leave, after finishing the prayer, towards any of the two directions, without restricting departure to one particular direction, whether he turned towards those he led in prayer or headed to leave the mosque. In the "Two Sahīh Collections", ‘Abdullāh ibn Mas‘ūd (may Allah be pleased with him) said: "No one of you should give the devil anything of his prayer, thinking that it is due on him to leave only to his right. Indeed, I often saw the Prophet (may Allah's peace and blessings be upon him) leave to his left." So, this matter has much leeway and no restriction. It was said: that leaving to the right is preferable, but not obligatory, and there is nothing wrong with leaving towards the left side, as the Prophet (may Allah's peace and blessings be upon him) did the both. It was also said: that it depends on the need and necessity. If a person, after finishing the prayer, needs to go in a certain direction, he can turn to it, be it right or left..