'Abdur Rahman bin 'Uthman al-Qurashi (RAA) narrated, 'A doctor consulted the Prophet (ﷺ) about extracting medicine from a frog but he prohibited killing it.' Related by Ahmad, Abu Dawud and An-Nasai. Al-Hakim graded it as Sahih. (DE)
English reference (DE): Book 12, Hadith 1371 (DE)
Arabic reference (DE): Book 12, Hadith 1331 (DE)