The Rigveda also refers in a hymn that Vayu churned for the sages (munis) and Rudra drinks from a cup of visha, which can be mean water or poison. John Muir suggests that visha in the Rigveda refers to Rudra drinking water, however it may have led to, in the Puranas, the legend of Shiva (who is closely linked to the Vedic Rudra) drinking poison in the Samudra Manthana (churning of the ocean) episode.
The Rigveda also refers in a hymn that Vayu churned for the sages (munis) and Rudra drinks from a cup of visha which can be mean water or poison John Muir suggests that visha in the Rigveda refers to Rudra drinking water however it may have led to in the Puranas the legend of Shiva (who is closely linked to the Vedic Rudra) drinking poison in the Samudra Manthana (churning of the ocean) episode