>>465908483Mahabharata book 13 section 78 One should always bathe, using cow-dung at the time. One should sit on dried cowdung. One should never cast one’s urine and excreta and other secretions on cowdung.
Garuda Purana 1.50.11 “Smearing the body with the dust of dried cow dung is the excellent form in bath called Vayavya…” Tr. Board of scholars, edited by J.L. Shastri
Srimad Bhagavatam 10.6.20 The child was thoroughly washed with cow urine and then smeared with the dust raised by the movements of the cows. Then different names of the Lord were applied with cow dung on twelve different parts of His body, beginning with the forehead, as done in applying tilaka. In this way, the child was given protection.
Usana Samhita 5.1 “Having purified himself with cow-dung and water and being self-controlled, [the performer of a S’raddha] saluting all the twice-born, should invite them with welcome words.” Tr. Manmatha Nath Dutt
Agni Purana 267.4-6 “Now I shall describe the other sorts of religious ablutions which grant success to their performers. A bath, after having lubricated the body with clarified butter, tends to increase the duration of life of a man, while by bathing with cowdung, a man becomes a favorite with fortune. Similarly, a bathing, done by rubbing the body with the urine of a cow, makes the bather free from all impieties…” Tr. M.N. Dutt
Bhagawad Puran 11.11.34.41 …and then one should further cleanse with water and cow dung…
Devi Bhagawatam 12.1-5 The pure cowdung of the Kapila (brown) cow is to be taken up by the hand before it reaches the ground.
BHIKSHUKA UPANISHAḌ of Shukla Yajur Veda …partaking daily of cow’s urine and cow’s dung, observing Chānḍrāyaṇa…
Agni Purana 90.7-14 “…The body of the disciple should be rubbed over with Kanjika, (decotion of rice), ashes of burnt clay, grass, cow dung, Golaka, white mustard, and washings of curd…” Tr. M.N. Dutt