Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ibnmajah:239Hishām b. ʿAmmār > Ḥafṣ b. ʿUmar > ʿUthmān b. ʿAṭāʾ from his father > Abū al-Dardāʾ

"I heard the Messenger of Allah say: 'Everyone in the universe, in the heavens and on earth, prays for forgiveness for the scholar, even the fish in the sea."  

ابن ماجة:٢٣٩حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ حَدَّثَنَا حَفْصُ بْنُ عُمَرَ عَنْ عُثْمَانَ بْنِ عَطَاءٍ عَنْ أَبِيهِ عَنْ أَبِي الدَّرْدَاءِ قَالَ

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِنَّهُ لَيَسْتَغْفِرُ لِلْعَالِمِ مَنْ فِي السَّمَوَاتِ وَمَنْ فِي الأَرْضِ حَتَّى الْحِيتَانِ فِي الْبَحْرِ