Ibn Majah

Urdu marginal note:
The narrations of the previous chapter were about taking animals on loan, and that is permissible. This chapter and this hadith are about the sale of animals. A loan is, by its nature, deferred, whereas a sale can be either immediate (cash) or deferred. The sale of an animal for another animal, if done immediately (cash), is permissible, even if there is a difference in quantity—for example, on one side there is one animal and on the other side two or three; there is no harm in this, as will be clarified in the next chapter. However, if the sale of an animal for another animal is deferred, it is not permissible. Those who have considered the scenario of a loan described in the narrations of the previous chapter to be a sale will have to interpret this narration, as Imam Shafi‘i rahimahullah has stated that the sale of an animal for another animal is prohibited when both sides are deferred, as occurs in bay‘ al-kali’ bil-kali’ (the sale of a debt for a debt). If the deferment is only on one side, then the sale is permissible. With this interpretation, the narrations of the previous chapter will not contradict this hadith. However, the correct view is that a deferred sale is prohibited in all cases, whether the deferment is on one side or both sides; however, a loan of an animal is permissible. Thus, there is a difference in the ruling between sale and loan. In this way, there is no need to interpret the hadith nor to reject the previous narrations. And this is the correct approach. The distinction between sale and loan is not limited to the issue of animals alone, but applies to other items as well.

Takhrij:
«أخرجه أبوداود، البيوع، باب في الحيوان بالحيوان نسيئة، حديث:3356، والترمذي، البيوع، حديث:1237، والنسائي، البيوع، حديث:4624، وابن ماجه، التجارات، حديث:2270، وأحمد:5 /12، 19، 3 /310.»©Explanation:
This hadith is evidence that it is not permissible to sell an animal for another animal on credit. However, the narration of Abdullah ibn Amr ibn al-As radi Allahu anhuma and other narrations that appear in this very chapter are in contradiction to this. On this basis, the majority (jumhur) consider it absolutely permissible to sell an animal for another animal on credit, even if there is an increase or decrease (in value or quantity).

And some scholars prohibit this.

However, Imam Shafi'i rahimahullah has reconciled between the two positions by stating that here, "on credit" (nasi’ah) refers to both sides being on credit, because the word "nasi’ah" carries the possibility that it refers to a sale in which both sides are deferred, and this is not valid according to anyone.

Imam Khattabi rahimahullah has favored and approved of this reconciliation and combination, and has said that this way of combining (the narrations) is good and excellent.

Imam Shawkani rahimahullah inclines towards the ahadith that prohibit (such sales), but the preferred opinion is that which Imam Shafi'i, Allamah Khattabi rahimahumallah, and the majority have adopted.