Berakhot 7a:8ืืจืืืช ืืณ ื:ืืณ
How much time does His anger last? Godโs anger lasts a moment. And how long is a moment? One fifty-eight thousand, eight hundred and eighty-eighth of an hour, that is a moment. The Gemara adds: And no creature can precisely determine that moment when God becomes angry, except for Balaam the wicked, about whom it is written: โHe who knows the knowledge of the Most Highโ (Numbers 24:16).
Tosafot on Berakhot 7a:12:1ืชืืกืคืืช ืขื ืืจืืืช ืืณ ื:ืืดื:ืืณ
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Mishnah Berurah 89:5ืืฉื ื ืืจืืจื ืคืดื:ืืณ
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Mishnah Berurah 110:1ืืฉื ื ืืจืืจื ืงืดื:ืืณ
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