The sunnan prayers (sunnah right before and/or just after fardh prayers and nawafil prayers) complement any shortcomings within our compulsory prayers. A few rivers:"For illustration, even though detailing the sentence “For among rocks there are numerous from which rivers gush forth” in verse seventy four from the chapter of al-Baqara https://traviswhoty.webbuzzfeed.com/31169725/the-ultimate-guide-to-jannah-firdaus