Is the prayer of an Imam who repeatedly carries his son during prayer to prevent him from passing in front of him acceptable?

It is permissible for someone who needs to carry their young child during prayer to do so, and their prayer is not invalidated. This is based on the action of the Prophet, peace and blessings be upon him. Ahmad, with this wording, and Abu Dawud and An-Nasa'i narrated from Abu Qatadah, who said: "I saw the Messenger of Allah, peace and blessings be upon him, praying while carrying Umamah, daughter of Abu Al-Aas. He would carry her when he stood up and put her down when he bowed, until he finished [his prayer]." It is recommended to strive to pray in congregation and in the mosque if possible, and to cooperate with Muslims to build a mosque if one is not available, because whoever calls to guidance will have a reward similar to that of those who follow him.