Though the appellant has also contended that under the evidence he should have been granted a divorce on grounds other than cruelty, we need not consider this matter, for one who has prayed for a divorce cannot complain of that portion of the decree which grants it to him. Fint v. Fint (1942), 15 Wn.2d 443, 131 P.2d 426. In conformity with the foregoing, the case should be remanded to the trial court with directions to follow through on the hearing, originally set for June 15, 1959; and thereafter, to make a final determination as to the custody of the children in terms of their best interests and welfare.