Abu Dawud

Benefits and Issues:
This has also been mentioned in the Book of Zakat.
For this, see
(Hadith 1591). However, here what is meant is that in a horse race, a person makes another person race alongside his horse, who keeps urging his horse forward.
And the purpose is that his horse moves ahead and wins; this is called *jilb*.
And *janb* is when, in the race, he keeps another horse alongside his own horse, so that when he sees that the first horse has become tired, he quickly mounts the second, fresh horse and tries to win the competition.
Both of these situations are impermissible.

Explanation:
1:
Jalb and Janb have two meanings:
One meaning pertains to zakat, and the other to horse racing competitions.
In zakat, jalb is when the zakat collector stays at a considerable distance and instructs the owners of zakat to bring their animals and pay zakat; this is prohibited.
The zakat collector should himself go to their pastures or watering places to collect the zakat animals.
In contrast, janb is when the owners of zakat take their animals far away so that the zakat collector has to run after them and becomes troubled.
In the first case, i.e., jalb, the burden is on those giving zakat, and in the second case, janb, the burden is on the zakat collector.
Therefore, neither of these is correct.
In horse racing, jalb and janb are synonymous with each other,
meaning that a person mounts one horse and keeps another fresh horse alongside, so that when the first one tires, he mounts the fresh horse and can easily win the competition.
Since this involves injustice and deception,
therefore, in this sense as well, jalb and janb are not permissible. (And the explanation of shighar will come in the author's own words in the context of the next hadith.)

Urdu Footnote:
➊ Jalb and Janb are two terms used both in zakat and in horse racing. In zakat, jalb is when the zakat collector forces people to bring their zakat-eligible animals to his office or center so that he can calculate and collect zakat from them. Janb is when the zakat collector goes to the people, and they let their animals wander here and there to graze, and intentionally scatter them. Both of these situations are prohibited because in the first case, the general public, and in the second case, the zakat officer, are subjected to undue hardship. Rather, the correct method is that the zakat collector should go to the place where the animals drink water and reside, calculate the zakat there, and collect it, and the owners should keep their animals in their enclosures on that day so that neither party is inconvenienced. In horse racing, jalb is when a rider appoints someone along the route so that when his horse passes by, that person frightens the horse to make it run faster and win the race. Janb is when a person brings an extra horse along with his own, so that during the race, if one horse becomes tired, he can mount the fresh horse and thus win the race. Since both of these situations (jalb and janb) involve deception and fraud, they are prohibited in horse racing.

➋ "Shighar is not permissible"—that is, such a marriage (according to the preferred opinion) is not even valid; rather, this contract is corrupt (fasid). It is necessary to annul it.

➌ "He is not from among us"—that is, in this matter, he is not upon the way of the people of faith and Islam. This does not mean that he is no longer a Muslim at all.

For details regarding "jalb" and "jabb," see Hadith: 3337.

Urdu marginal note:
Nikah watta refers to a marriage in which there is no dower (mahr) from either side. If a dower (mahr) is stipulated from both sides, then it is permissible, although its harms are not hidden.