The Story of Zakariyya and His Supplication for a Son Allah says:كهيعصKaf Ha Ya `Ain Sad. The discussion about the separate letters has already preceded at the beginning of Surah Al-Baqarah. Concerning Allah's statement,ذِكْرُ رَحْمَةِ رَبِّكَ عَبْدَهُ زَكَرِيَّا