The Messenger of Allah ﷺ said, "When the call is given for the dawn prayer and one of you is in a state of ritual impurity from sexual relations, let him not fast that day."
وقال رسول الله ﷺ إن الله عز وجل قال أعددت لعبادي الصالحين ما لا عين رأت ولا أذن سمعت ولا خطر على قلب بشر
This is sahih by virtue of the soundness of the manuscript, and it is in the individual manuscript under number 30. Bukhari related it in 1:144 (printed edition) / 13:391 (Fath) by way of the manuscript, but not through the narration of Abdul-Razzaq from Maamar, rather through the narration of Abdullah bin Mubarak from Maamar. Muslim did not relate it by way of the manuscript. Bukhari related it in 6:230, 8:396 (Fath), and Muslim in 2:348-349 (Bulaq edition), through other routes from Abu Hurairah, and likewise it will come through other routes at 9647, 10018, 10428, and its meaning will come within another hadith at 8813, 9268, 9380, 9958.