Ninsho participated as Kanjin Hijiri (fund-raising priests) in the reconstruction of Saidai-ji Temple (Nara City) which was lead by Eison in 1239, where he came to admire Eison, and received Jukai once again from Eison to become his disciple, and in the following year, March 1240, he conducted the ceremony to enter into priesthood once again.
1239年に叡尊が主導していた西大寺(奈良市)の再建に勧進聖として加わった忍性は叡尊に惹かれて同寺において再度叡尊の下で授戒してその弟子となり、翌1240年3月に改めて出家の儀式をやり直している。