And surely Yoosuf had come to you before with Evidences, then you never ceased your doubt concerning what he brought, until he died; then you said: Allah will never send a Messenger after him, just like that Allah lets astray the one who is a trespassing doubter.
Evidence is one of the 40 names of Adhikr. When Yoosuf came to Egypt before with the Message of Allah, you doubted about It. But after his death you were praising him saying that Allah wouldn’t send any Messenger after him. The believer is asking that now are you taking same approach towards Moosa also.
After getting Adhikr which is the Confirming Truth to remove all types of doubts as explained in verse 69: 51, whoever doesn’t confirm that he is a believer, and are in doubt about all things, such are the strayed and trespassed. Through the verses 25: 27-29 it is warned that on the Day of Judgement these wrong doing Fujjar will wail as: Woe to me! If I had not taken so and so as my intimate friend, he strayed me from Adhikr after It had come to me, Satan was a manifest traitor to mankind. The scene of arguing, quarrelling and cursing among the hypocritical disbelievers and their blind followers from the hell is explained in verses 2: 165-167. See explanation 10: 57-58; 14: 9; 32: 10-12.