What is the meaning of the term "musallamah" in this āyah?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. It means the cow should be free from defects. [Ibn ʿAbbās, Abū al-ʿĀliyah, Qatādah, Muqātil]
2. It means unburdened by labour (i.e., it has not been used for work). [Al-Ḥasan, Ibn Qutaybah]
3. It means free from any blemish or marking. [Mujāhid, Ibn Zayd]
4. It means sound in its legs and body structure. [ʿAṭāʾ al-Khurāsānī]