That he asked Sa‘d ibn Abī Waqqāṣ about selling white wheat for husked barley, and Sa‘d said to him: "Which of the two is better?" He said: "The white wheat." So Sa‘d forbade him from that." And he said: I heard the Messenger of Allah, peace and blessings be upon him, being asked about buying dates for fresh ripe dates, and the Messenger of Allah, peace and blessings be upon him, said: "Does the fresh ripe date decrease when it dries?" They said: "Yes." So he forbade him from that (1).

Abū Dāwūd said: Ismā‘īl ibn Umayyah narrated it similar to the narration of Mālik.

3360 — Al-Rabī‘ ibn Nāfi‘ Abū Tawbah narrated to us, Mu‘āwiyah — meaning Ibn Sallām — narrated to us, from Yaḥyā ibn Abī Kathīr, ‘Abd Allāh informed us, that Abū ‘Ayyāsh informed him

that he heard Sa‘d ibn Abī Waqqāṣ say: The Messenger of Allah, peace and blessings be upon him, forbade the sale of fresh ripe dates for dried dates on credit (2).

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(1) Its chain is strong. Zayd Abū ‘Ayyāsh was declared reliable by al-Dāraquṭnī, and Ibn Ḥibbān mentioned him in "al-Thiqāt," and both he and his teacher Ibn Khuzaymah, and al-Ḥākim deemed his narration authentic.
The ḥadīth is in "al-Muwaṭṭa’" 2/624. ‘Abd Allāh ibn Yazīd: he is the freed slave of al-Aswad ibn Sufyān.
From the path of Mālik, it was narrated by Ibn Mājah (2264), al-Tirmidhī (1228) and (1229), and al-Nasā’ī (4545). Al-Tirmidhī said: This is a ḥasan ṣaḥīḥ ḥadīth.
It is in "Musnad Aḥmad" (1515) and "Ṣaḥīḥ Ibn Ḥibbān" (4997). See also what follows it.
Al-Bayḍā’: the white wheat, and al-sult: a type of white barley without husk. [As stated] in "al-Nihāyah."
(2) Its chain is strong like the previous one, except for his statement "on credit," for al-Dāraquṭnī said in his "Sunan" after the ḥadīth (2994): And he (meaning Yaḥyā ibn Abī Kathīr) was contradicted by Mālik, Ismā‘īl ibn Umayyah, al-Ḍaḥḥāk ibn ‘Uthmān, and Usāmah ibn Zayd — they narrated it from ‘Abd Allāh ibn Yazīd and did not mention in it "on credit." The agreement of these four against what Yaḥyā narrated indicates their precision in [preserving] the ḥadīth, and among them is an imam and ḥāfiẓ, namely Mālik ibn Anas.
Al-Nasā’ī also narrated it (4546) from the path of Ismā‘īl ibn Umayyah, from ‘Abd Allāh ibn Yazīd, from him.
And he did not say in it "on credit," like Mālik’s narration in the previous ḥadīth.