It is rejected (munkar), and Mus‘ab ibn Thābit is not strong in hadith. And Allah Most High knows best.

16 – Chapter: Cutting off [the hand] during travel

4979 – ‘Amr ibn ‘Uthmān informed us, saying: Baqiyyah narrated to me, saying: Nāfi‘ ibn Yazīd narrated to me, saying: Ḥaywah ibn Shurayḥ narrated to me, from ‘Ayyāsh ibn ‘Abbās, from Junādah ibn Abī Umayyah, who said:
I heard Busr ibn Abī Arṭāh say: I heard the Messenger of Allah ﷺ say: "Hands are not cut off during travel."

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Something similar to this has preceded in the previous narration from the hadith of al-Ḥārith ibn Ḥāṭib, and we mentioned that more than one scholar deemed it objectionable (munkar).

His saying: "then he bared his teeth" (thumma kashshara) – al-Sindī said: It is said: thus it appears in the copies, and al-kashr is the appearance of the teeth when smiling, and it has no great meaning here. In al-Kubrā it appears as "kasara" (with an unpointed letter) and was corrected upon that, and it has no great meaning either. There has also come "kashīsh al-af‘ā" (the hissing of the viper) – with a shīn and two unpointed letters, without a rā’ – meaning the sound of its skin when it moves; one says: kashshat takushshu. And this meaning would be correct here if a narration supported it. Then al-Sindī said: The occurrence of a slight corruption by the copyist is not far-fetched, and Allah knows best.

I say: The editors of al-Kubrā favored from the manuscript the reading "kassa," and they said: Perhaps its meaning is what is found in Lisān [al-‘Arab]: kassa al-shay’a yakussuhu kassan – he crushed it severely. And in the wording there is an ellipsis, meaning: he crushed the ground with his hands and feet.

And his saying: "the camels scattered" (fa-nṣada‘at al-ibil) – al-Sindī said: i.e., they dispersed.

(1) The phrase "And Allah Most High knows best" is from (K).
(2) The word "Abī" is not in (M).
(3) The hadith is authentic (ṣaḥīḥ), but this chain is weak due to the weakness of Baqiyyah – i.e., Ibn al-Walīd – for he commits tadlīs of taswiyah, and he dropped the intermediary between ‘Ayyāsh ibn ‘Abbās and Junādah ibn Abī Umayyah. It is in al-Sunan al-Kubrā under number (7430), and he said after it: This hadith is not one that is adduced as proof.
It was also narrated by Abū Dāwūd (4408) via the path of ‘Abdullāh ibn Wahb, from Ḥaywah, from ‘Ayyāsh ibn ‘Abbās, from Shuyaym ibn Baytān and Yazīd ibn Ṣubḥ, from Junādah ibn Abī Umayyah, with this chain. Ibn ‘Adī said in al-Kāmil 2/141 in the biography of Busr ibn Abī Arṭāh – and it is also said: Ibn Arṭāh –: I do not see any harm in its chain. =