MUSE data of the multiply imaged background sources identified in SDSS 2222 with QF ≥ 2 (see Table 1). The vertical black lines indicate the positions of the emission lines based on the best estimate of the systemic redshift. The grey area shows the re-scaled variance obtained from the data reduction pipeline. The flux is given in units of 10 erg s⁻¹ cm⁻² Å⁻¹. The image cutouts in each panel, which are 2″ across, are extracted from the colour-composite HST image; the white circles pinpoint the HST counterparts.