من لا يحضره الفقيه, volume 1, page 21

Hadith.30 - Ya'qub ibn 'Uthaym asked Imam Jafar ibn Muhammad Al-Sadiq (as) about a well of water that had a smell, and pieces of skin were coming out of it. Imam (as) said: "It is nothing (to worry about) because a lizard may sometimes shed its skin. Drawing one bucket is sufficient for that."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.31 - Jabir ibn Yazid al-Ju'fi about a gecko falling into a well. Imam (as) said: "It is nothing (to worry about); stir the water with a bucket."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.32 - Yaqub ibn Uthaym asked Imam Muhammad ibn Ali Al-Baqir (as) about a gecko that was found decayed in a well. Imam (as) said: "You only need to draw seven buckets from it." Ya'qub then asked: "Our clothes that we prayed in—do we need to wash them and repeat the prayer?" Imam (as) said: "No."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.33 - Imam Jafar ibn Muhammad Al-Sadiq (as) said: "There was a well in Medina in the middle of a garbage dump. The wind would blow filth into it, yet The Prophet (sw) used to perform ablution from it."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.34 - Muhammad ibn Muslim asked Imam Muhammad ibn Ali Al-Baqir (as) about a dead animal that falls into a well. Imam (as) said: "If it has an odor, twenty buckets should be drawn from it."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.