The ruling on a man’s prayer if he enters the mosque and finds the imam bowing, so he bows and crawls until he reaches the row

The Shaykh : ... for you until you entered the row, and the imam had already risen before you finished reaching the row. He said: One rak'ah suffices for him.
The student : One rak'ah suffices for him.

The Shaykh : One rak'ah, understood?
The student : Yes, that is right, meaning this rak'ah is dropped from him.

The Shaykh : No, the whole phrase means, meaning the man entered the mosque and the imam was bowing, so he bowed where he was and crawled, but when the imam raised his head from the bowing, he had not yet joined the row. This is the point.
The student : Yes, this is a fine point.

The Shaykh : Yes, this is the one.
The student : He said one rak'ah suffices for him.

The Shaykh : One rak'ah suffices for him, meaning he caught up with the imam by catching up with his bowing.
The student : Even if outside.

The Shaykh : As long as he bowed as soon as he entered the mosque and crawled, it is not necessary that he be able to reach the row and join the imam while he is bowing in the row.
The student : In the row, yes.

The Shaykh : Placing the teeth of sheep and the like in the place of the missing ones, was medicine, I mean, advanced to this degree?
The student: Glory be to Allah!