Dressing: Grate the zest from 1 lime and add it to a medium bowl, along with the juice from both limes. Whisk in salt, tahini, and olive oil.
Salad: To a large bowl add chickpeas, cucumber, celery, and cilantro.
Toss: Drizzle the dressing over the salad and toss to combine. Serve immediately or store in an airtight container in the fridge.