Ibrahim bin Ishaq al-Harbi (may Allah have mercy on him) said: I heard Ali bin al-Madini (may Allah have mercy on him) say that Malik bin Anas (may Allah have mercy on him) abandoned narrating from Ibn Abi Dhubab; there is no mention of him in his book, and he did not narrate anything from him.
Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "On land that the sky waters, a tenth is due; and on what is watered by a water-wheel (from a well) and the like, half a tenth is due."
Asim (may Allah have mercy on him) said: Malik (may Allah have mercy on him) told us: I was informed of it from Sulayman bin Yasar and Busr bin Sa'id (may Allah have mercy on them). And he (Malik) abandoned Ibn Abi Dhubab because of the munkar (objectionable) reports in his narration.
The Shaykh said: This hadith has no need of the narration of Ibn Abi Dhubab, for we have narrated it with two authentic chains from Ibn Umar (may Allah be pleased with them both) from the Prophet (peace and blessings be upon him), and with an authentic chain from Jabir (may Allah be pleased with him) from the Prophet (peace and blessings be upon him). It is the view of the generality (of scholars); they did not differ on it. And the hadith of Amr bin Hazm has already been mentioned.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7490