וְע֛וֹד אֲנִ֥י מְדַבֵּ֖ר בַּתְּפִלָּ֑ה וְהָאִ֣ישׁ גַּבְרִיאֵ֡ל אֲשֶׁר֩ רָאִ֨יתִי בֶחָז֤וֹן בַּתְּחִלָּה֙ מֻעָ֣ף בִּיעָ֔ף נֹגֵ֣עַ אֵלַ֔י כְּעֵ֖ת מִנְחַת־עָֽרֶב׃
yea, while I was speaking in prayer, the man Gabriel, whom I had seen in the vision at the beginning, being caused to fly swiftly, approached close to me about the time of the evening offering.
Read halakhic rulings (Jewish law) on Daniel 9:21: and classical halakhic sources.