The short supplication for the Imam of the Age (aj); read at any time, and after the prayers in Ramadan
بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ
اللَّهُمَّ كُنْ لِوَلِيِّكَ الْحُجَّةِ بْنِ الْحَسَنِ، صَلَوَاتُكَ عَلَيْهِ وَعَلَى آبَائِهِ، فِي هَذِهِ السَّاعَةِ وَفِي كُلِّ سَاعَةٍ، وَلِيّاً وَحَافِظاً، وَقَائِداً وَنَاصِراً، وَدَلِيلاً وَعَيْناً، حَتَّى تُسْكِنَهُ أَرْضَكَ طَوْعاً، وَتُمَتِّعَهُ فِيهَا طَوِيلاً.
O God, be for Your deputy, al-Hujja ibn al-Hasan — Your blessings be upon him and upon his forefathers — in this hour and in every hour, a guardian and a protector, a leader and a helper, a guide and a watchful eye, until You settle him on Your earth in willing obedience, and let him enjoy it there for long.
O God, bless Muhammad and his family