﴿ ذَٰلِكَ أَمْرُ ٱللَّهِ أَنزَلَهُۥٓ إِلَيْكُمْ ۚ وَمَن يَتَّقِ ٱللَّهَ يُكَفِّرْ عَنْهُ سَيِّـَٔاتِهِۦ وَيُعْظِمْ لَهُۥٓ أَجْرًا ﴾

“[for] all this is God's commandment, which He has bestowed upon you from on high. And unto everyone who is conscious of God will He pardon [some of] his bad deeds, and will grant him a vast reward.”

That which is mentioned regarding the prescribed waiting period is God’s command His ruling which He has revealed to you. And whoever fears God He will absolve him of his misdeeds and magnify the reward for him.