Draw game insufficient material, but I won on time I let him have a queen and rook

FIDE Laws of Chess:
"6.9
Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by thatplayer. However, the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves."
https://handbook.fide.com/chapter/E012018
So your opponent ran out of time, but you could not checkmate him by any possible series of legal moves, hence draw.