نَحْوُ: «جِئْتُكَ إِذْ طَلَعَتِ الشَّمْسُ» وَ«إِذِ الشَّمْسُ طَالِعَةٌ».
Translation: For example, “I came when the sun rose,” or “when the sun was rising.”
The example idh al-shamsu ṭāliʿatun contains a nominal clause: al-shamsu is subject and ṭāliʿatun the predicate. Idh introduces the temporal frame but does not itself make those words nominative.