The Prophet ﷺ said: “Do four things in abundance (in Ramadan): two things with which you please your Lord, and two things which you cannot do without. As for the two things with which you please your Lord: your testifying that there is nothing worthy of worship other than Allah and your seeking His forgiveness. As for the two things which you cannot do without: your asking Allah for Paradise and seeking refuge in Him from the Fire.” (Ibn Khuzaymah)
We add to that the dua the Prophet ﷺ taught Sayyidah Aishah to say on Laylat al-Qadr: “O Allah, truly You are all-Pardoning, You love to pardon so pardon us”
