He disapproved of hiring a man without informing him of his wages.
أخبرنا محمد قال أنبأنا حبان قال أنبأنا عبد الله عن حماد بن سلمة عن يونس
أنه كره أن يستأجر الرجل حتى يعلمه أجره
No references are available.
[Its chain is daif] Nasai alone narrated it. Yunus is Ibn Ubayd, and he is a mudallis, as Nasai said (Siyar Alam al-Nubala: 7/74), and he narrated with "an" (without specifying direct hearing). Abdullah is Ibn Mubarak.