What does ṭalīḥ describe in bi-ṭalīḥi asfār?

Labīd ibn Rabīʿah: Severing Ties, Generosity and the Travel-Worn She-Camel (Verses 20–24)

• The south wind
• A she-camel worn out by journeys
• The season’s first cloud
• A friend’s cheerful manner