It is narrated from Hazrat Hudhaifah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Do not say, "What Allah willed and what so-and-so willed," but rather say, "What Allah willed, and after that, what so-and-so willed."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23347