It is obligatory to see the first night moon of the holy month of Ramadhan. After seeing the first night moon turn towards Qiblah, raise your hands and recite:
رَبِّى وَ رَبُّكَ اللَّهُ رَبُّ الْعَالَمِينَ اللَّهُمَّ أَهِلَّهُ عَلَيْنَا بِالْأَمْنِ وَ الْإِيمَانِ وَ السَّلامَةِ وَ الْإِسْلامِ وَ الْمُسَارَعَةِ إِلَى مَا تُحِبُّ وَ تَرْضَى
اللَّهُمَّ بَارِكْ لَنَا فِى شَهْرِنَا هَذَا وَ ارْزُقْنَا خَيْرَهُ وَ عَوْنَهُ وَ اصْرِفْ عَنَّا ضُرَّهُ وَ شَرَّهُ وَ بَلاءَهُ وَ فِتْنَتَهُ
Translation: My Lord and your Lord is Allah, the Lord of the worlds. O Allah for us let this month be a period of peace, faith, safety and total submission to Thy will; make us walk apace
swiftly to that which Thou likes and approves. O Allah pour out much blessings on us in this month, make available for us its generous good and assistance, and keep us safe from the harm, evil,
misfortune and mischief that may try to trap us in this month.