Is it better to visit the graves of one’s parents after fajr prayer, or after the Asr and Maghrib prayers?
Ziyarah (visiting) is always permissible. However, one should not visit the cemetery alone at night. The best time for visiting is after the Fajr prayer on Friday.
And Allah ﷻ knows the best
Imam Ahmad Rida Khan رحمة الله تعالى عليه
Translation by Dr Musharraf Hussain Al-Azhari Translator of Majestic Quran, www.majesticquran.co.uk