«أَنْتِ طَالِقٌ فِي مَشِيئَةِ اللَّهِ تَعَالَى»
“You are divorced in relation to the will of God Most High.”
Divine will is not an ordinary spatial or temporal container for a divorce. The construction instead has the character of qualification or conditional attachment and should not be equated without analysis with an unqualified immediate divorce formula.
The linguistic principle is that fi can appear with something that cannot literally contain the act. Its legal connection must then be identified through the appropriate form of qualification. A worked example here is not a stand-alone verdict on an actual divorce case.