Ibn Majah

1؎ : From this hadith, it is also understood that when one wakes up at night from sleep, as much as possible, one should recite the kalimah, make supplication (du'a), seek forgiveness (istighfar), and remain engaged in glorification (tasbih) or declaration of Allah's oneness (tahlil). By doing so, one will attain the reward of standing in prayer at night (qiyam al-layl). However, the most virtuous is to rise from the bed, perform ablution (wudu), and offer the night prayer (tahajjud). If someone is unable to perform tahajjud, then at the very least, it is necessary that while still lying on the bed, one recites this kalimah as many times as possible, seeks forgiveness, and makes supplication. In this way, even this much will be considered as having performed qiyam al-layl. And it should be known that the pious predecessors (salaf salihin) never abandoned qiyam al-layl, and it is necessary even if it is only a little, that is, by reciting this kalimah once and making supplication as mentioned in this hadith.