ControllerColliderHit.rigidbody

Description

The rigidbody that was hit by the controller.

Null if we didn't touch a rigidbody but a static collider.

    // Activate the gravity of other object we touch
    function OnControllerColliderHit(hit : ControllerColliderHit) {
        if(hit != null) {
            hit.rigidbody.useGravity = true;
        }
    }

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnControllerColliderHit(ControllerColliderHit hit) {
        if (hit != null)
            hit.rigidbody.useGravity = true;
        
    }
}