ControllerColliderHit.collider

Description

The collider that was hit by the controller.

function OnControllerColliderHit(hit : ControllerColliderHit) {
    // Call a damage function on the object we hit.
    hit.gameObject.SendMessage("ApplyDamage", 5);
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnControllerColliderHit(ControllerColliderHit hit) {
        hit.gameObject.SendMessage("ApplyDamage", 5);
    }
}